<template>
	<view>
		<view class="goods-item">
			<!-- 左侧的盒子 -->
			<view class="goods-item-left">
				<radio :checked="goods.goods_state" color="#C00000"v-if="showRadio" @click="radioClickHandler"></radio>
				<image :src="goods.goods_small_logo ||defaultPic" class="goods-pic"></image>
				
			</view>
			<!--右侧的盒子 -->
			<view class="goods-item-right">
				<!-- 商品的名字 -->
				<view class="goods-name">{{goods.goods_name}}</view>
				<view class="goods-info-box">
					 <!-- 商品价格 -->
					<view class="goods-price">￥{{goods.goods_price | tofixed}}</view>
					 <!-- 商品数量 -->
					  <uni-number-box :min="1" :value="goods.goods_count" v-if="showNum"  @change="numChangeHandler"></uni-number-box>
				</view>
			</view>
			
		</view>
		
	</view>
</template>

<script>
	export default {
		name:"my-goods",
		props:{
			goods:{
				type:Object,
				default:{}
			},
			showRadio:{
				type:Boolean,
				//默认情况下,不会展示radio组件
				default:false
			},
			// 是否展示价格右侧的 NumberBox 组件
			showNum: {
			  type: Boolean,
			  default: false,
			},
		},
		filters:{
			 // 把数字处理为带两位小数点的数字
			  tofixed(num) {
			    return Number(num).toFixed(2)
			}
		},
		data() {
			return {
				// 默认的空图片
				defaultPic: 'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png'
				  
			};
		},
		methods:{
			 // radio 组件的点击事件处理函数
			radioClickHandler(){
				// 通过 this.$emit() 触发外界通过 @ 绑定的 radio-change 事件，
				    // 同时把商品的 Id 和 勾选状态 作为参数传递给 radio-change 事件处理函数
				 this.$emit('radio-change',{
					 goods_id:this.goods.goods_id,
					 goods_state:!this.goods.goods_state
				 })
			},
			 // NumberBox 组件的 change 事件处理函数
			  numChangeHandler(val) {
			    // 通过 this.$emit() 触发外界通过 @ 绑定的 num-change 事件
			    this.$emit('num-change', {
			      // 商品的 Id
			      goods_id: this.goods.goods_id,
			      // 商品的最新数量
			      goods_count: +val
			    })
			  }
			
		}
	}
</script>

<style lang="scss">
.goods-item{
		display: flex;
		padding:10px 5px;
		border-bottom: 1px solid #f0f0f0;
		.goods-item-left{
			margin-right: 5px;
			display:flex;
			justify-content: space-between;
			align-items: center;
			
			.goods-pic{
				width: 100px;
				height: 100px;
				display: block;

			}
		}
		.goods-item-right{
			display: flex;
			flex-direction: column;
			justify-content: space-between;
			flex:1;
			
			.goods-name{
				font-size: 13px;
				
			}
			.goods-info-box{
				display: flex;
				justify-content: space-between;
				align-items: center;
				.goods-price{
					font-size: 13px;
					color: #C00000;
				}
				
			}
		}
	}
</style>